German Press Shutter. Copal #1 - 41.6mm. Serviced.

A standard sized shutter for use with a lens elements. This is a 'press' shutter, so it is cocked and released with a single press of the shutter release cable. Shutter has speeds from 1/125 to 1 second, plus B.
There is an aperture control on this lens. There is an aperture scale indicating f4.5 to f22 (which is not photographed!). There is no manual shutter release, you must use a cable release.

This item has just been professionally serviced. It is supplied with an extended six month warranty.